.chg file format of MONOMAKH-SAPR: JavaScript parsing library

CHG is a container format file used by MONOMAKH-SAPR, a software package for analysis & design of reinforced concrete multi-storey buildings with arbitrary configuration in plan.

CHG is a simple container, which bundles several project files together.

Written and tested by Vladimir Shulzhitskiy, 2017

Application

MONOMAKH-SAPR

File extension

chg

KS implementation details

License: CC0-1.0
Minimal Kaitai Struct required: 0.7

This page hosts a formal specification of .chg file format of MONOMAKH-SAPR using Kaitai Struct. This specification can be automatically translated into a variety of programming languages to get a parsing library.

Usage

Runtime library

All parsing code for JavaScript generated by Kaitai Struct depends on the JavaScript runtime library. You have to install it before you can parse data.

The JavaScript runtime library is available at npm:

npm install kaitai-struct

Code

See the usage examples in the JavaScript notes.

Parse structure from an ArrayBuffer:

var arrayBuffer = ...;
var data = new MonomakhSaprChg(new KaitaiStream(arrayBuffer));

After that, one can get various attributes from the structure by accessing fields or properties like:

data.title // => get title

JavaScript source code to parse .chg file format of MONOMAKH-SAPR

MonomakhSaprChg.js

// This is a generated file! Please edit source .ksy file and use kaitai-struct-compiler to rebuild

(function (root, factory) {
  if (typeof define === 'function' && define.amd) {
    define(['kaitai-struct/KaitaiStream'], factory);
  } else if (typeof module === 'object' && module.exports) {
    module.exports = factory(require('kaitai-struct/KaitaiStream'));
  } else {
    root.MonomakhSaprChg = factory(root.KaitaiStream);
  }
}(this, function (KaitaiStream) {
/**
 * CHG is a container format file used by
 * [MONOMAKH-SAPR](https://www.liraland.com/mono/index.php), a software
 * package for analysis & design of reinforced concrete multi-storey
 * buildings with arbitrary configuration in plan.
 * 
 * CHG is a simple container, which bundles several project files
 * together.
 * 
 * Written and tested by Vladimir Shulzhitskiy, 2017
 */

var MonomakhSaprChg = (function() {
  function MonomakhSaprChg(_io, _parent, _root) {
    this._io = _io;
    this._parent = _parent;
    this._root = _root || this;

    this._read();
  }
  MonomakhSaprChg.prototype._read = function() {
    this.title = KaitaiStream.bytesToStr(this._io.readBytes(10), "ascii");
    this.ent = [];
    var i = 0;
    while (!this._io.isEof()) {
      this.ent.push(new Block(this._io, this, this._root));
      i++;
    }
  }

  var Block = MonomakhSaprChg.Block = (function() {
    function Block(_io, _parent, _root) {
      this._io = _io;
      this._parent = _parent;
      this._root = _root || this;

      this._read();
    }
    Block.prototype._read = function() {
      this.header = KaitaiStream.bytesToStr(this._io.readBytes(13), "ascii");
      this.fileSize = this._io.readU8le();
      this.file = this._io.readBytes(this.fileSize);
    }

    return Block;
  })();

  return MonomakhSaprChg;
})();
return MonomakhSaprChg;
}));